8 layer pcb board thickness: 0.3mm Materials: Fr-4 and PI Layer: 8 layers Surface finish: immersion gold Minimum trace width and space: 4mil Minimum whole size: 0.2mm Copper thickness: 1oz Solder mask: green Silk screen: white SMT final assembly We can supply PCBA, SMT final assembly-vertical integrated manufacturing solution Capable of developing effective production process to ensure high quality and consistency ensure product quality and reliability Uses the SMT non-lead craft, meets the international environmental protection requirement Profound knowledge of contract manufacturing services Complicated boards and components are available Provides OEM services to all sorts of printed circuit board assemblies as well as electronic encased products PCBA, PCB assembly, SMT assembly